Home / 141,276.64-194,965.20-77,618.56

Finding the Fourth Proportional to 141,276.64, 194,965.20 and 77,618.56

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Solution

The fourth proportional to 141,276.64, 194,965.20 and 77,618.56 is: 107,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,276.64 : 194,965.20 = 77,618.56 : x
  2. Step 2: Convert to fraction form
    141,276.64/194,965.20 = 77,618.56/x
  3. Step 3: Cross multiply
    141,276.64x = 194,965.20 × 77,618.56
  4. Step 4: Simplify right side
    141,276.64x = 15,132,918,074.11
  5. Step 5: Solve for x
    x = 15,132,918,074.11/141,276.64
  6. Step 6: Final answer
    x = 107,115.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.